CVE-2026-33592

An unauthenticated remote attacker can exhaust server memory via the FindServers Discovery Service in open62541. The serverUris field of FindServersRequest is not validated for length or array size. An attacker can declare an arbitrarily large string up to 3.9 GB delivered across intermediate...

CVE-2026-33592

The CVE-2026-33592 issue affects open62541 (versions 1.4.0–1.4.16, 1.5.0–1.5.4, and master). An unauthenticated remote attacker can exhaust server memory via the FindServers Discovery Service because the FindServersRequest serverUris field is not validated for length/array size. An adversary can ...

CVE-2026-33592: Allocation of Resources Without Limits or Throttling

An unauthenticated remote attacker can exhaust server memory via the FindServers Discovery Service in open62541. The serverUris field of FindServersRequest is not validated for length or array size. An attacker can declare an arbitrarily large string up to 3.9 GB delivered across intermediate...

PT-2026-54729

An unauthenticated remote attacker can exhaust server memory via the FindServers Discovery Service in open62541. The serverUris field of FindServersRequest is not validated for length or array size. An attacker can declare an arbitrarily large string up to 3.9 GB delivered across intermediate...